/Engine/Source/Editor/Kismet/Classes/BlueprintPaletteFavorites.h
Remove the specified actions from the current favorites list. Will also convert the user's profile to a custom one (if it isn't already).
void RemoveFavorites ( [TArray](API\Runtime\Core\Containers\TArray)< [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [FEdGraphSchemaAction](API\Runtime\Engine\EdGraph\FEdGraphSchemaAction) > > PaletteActions )